Dreamwork can be a great complement of breathwork, and vice versa. This book by dream cartographers Tom Verner and Stephen Larsen is a wonderful resource, based on decades of their work with dream groups. See especially the discussion of dream contents in terms of Grof’s perinatal matrices, page 41:
Psychiatrist Stanislav Grof posits that our birth impacts us in ways that are very real, even though they may not be all that tangible to us. To best articulate these impacts he devised a model of them and named them the Basic Perinatal Matrices (BPM). Not only dreams, but almost every subsequent experience in waking life activate the dynamics of one of these underlying matrices.